Humidity calculations and conversions made easy – online, offline and on the go

Humidity Calculator makes complex manual calculations and conversions a thing of the past.

Register to start the Vaisala Humidity Calculator 5.0

The free Vaisala Humidity Calculator allows you to calculate several humidity parameters from one known value. Make unit conversions on the fly, and see the effects of changing ambient conditions, like temperature and pressure.

The tool includes calculation and conversion for:

  • relative humidity
  • dew point / frost point
  • absolute humidity
  • water content
  • mixing ratio
  • vapor pressure
  • parts per million
  • wet bulb temperature
  • enthalpy
  • specific volume
  • density

The new user interface works on any operating system with modern browser support - tested with IE9+, Chrome, Firefox, and Safari. Also tested with Android, iOS and Windows mobile devices.

Eight languages are available:

  • English
  • Chinese
  • Dutch
  • Finnish
  • French
  • German
  • Japanese
  • Portuguese

No more installing software for offline use - just bookmark the calculator page or add it to the home screen on your mobile device.

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